A nonirritant composition which is useful in restoring hair and which comprises a normally solid, water-insoluble hair restorer, for example, minoxidil, a normally solid Hsieh dermal penetration-facilitator for the hair restorer, for example, pentadecalactone, and a solvent or co-solvent in which the hair restorer and the facilitator are solubilized and which does not impart to the composition irritant properties, and wherein, upon application to the surface of the skin of a recipient, the hair restorer penetrates the dermal layer of the skin and with minimal systemic delivery of the hair restorer into the blood stream of the recipient.
